jumps -- edward norton, really? jumps into the frigid waters of the boston harbor after a woman fell in. he pulled her to a nearby life raft. >> being a hero, that's what it's all about. >> that cop is a hero to me. >>> i'm rebecca jarvis with jeff glor and charlie, gayle, and norah are off today. a white christmas is on tap for much of the country as a storm moves east ward. heavy snow in the nevada made driving dangerous over the weekend for holiday travellers. some mountains are expecting up to five feet of snow. jeff berardelli is watching it. what's happening now. >> good morning. we have one system moving through the east as you can see behind me producing mainly light rain, a couple of thunderstorms and on the northern side in ohio, pennsylvania and new york a little bit of snow which will make for a white christmas tomorrow morning. but the bigger story is definitely what's happening in the southeast. christmas day we're going to have to stay very aware of the situation. looks like we're going to see a wides